Actual flow tests are the only way to get reliable data. We are faced with water rationing, polluting of streams by storm drain runoff, etc. Modeling is becoming more prevalent. I agree it is crap and cannot be deemed reliable.
Ed Alpha Fire ----- Original Message ----- From: <[email protected]> To: <[email protected]> Sent: Sunday, September 06, 2009 8:24 PM Subject: Re: NFPA 25 Proposed Routine Water Supply Testing > Never deal woth modeling. Actual flow tests only. Most of thje modeling I > see is crap. > > Sent from my Verizon Wireless BlackBerry > > -----Original Message----- > From: [email protected] > > Date: Mon, 7 Sep 2009 02:52:13 > To: <[email protected]> > Subject: Re: NFPA 25 Proposed Routine Water Supply Testing > > > > Once a test like a flow test is commenced I'm used to the requirement to > continue flowing water until water is material free. On the typical casual > basis this is water into a styrofoam cup, until a couple grabbed samples > in a row show no material. Have your reading glasses on. Otherwise another > water system user may be negatively impacted, ie. have product ruined. > > A flow test uses an amazing amount of water. 50K gallons would not be > exceptional. > > Has anyone asked who is going to pay for the water? It's not free. > > I'm used to seeing modeling results for design. Is anyone still doing the > pitot routine? > > Yours, > > Bruce Verhei > > > > ----- Original Message ----- > From: "David de Vries" <[email protected]> > To: [email protected] > Sent: Thursday, September 3, 2009 9:06:48 PM GMT -08:00 US/Canada Pacific > Subject: NFPA 25 Proposed Routine Water Supply Testing > > There is a proposal in NFPA 25 to require water supply testing for > sprinkler systems every 5 years. No trigger, like new, high-demand > construction in the area or deterioration in the main drain test > results -- just every 5 years run the test. This passed the committee on a > vote of 24 to 5. > > Anybody out there doing water supply testing for existing systems when > there is no indication of a deteriorated supply? Any owners asking for it? > > Sorry for the late heads-up. Comments on this, and all the rest of the 205 > proposals, are due to NFPA by 5:00 p.m. EDT Friday. I will be up early to > prep some comments myself. > > Dave > > David A. de Vries, P.E., CSP > Firetech Engineering Incorporated > > > > --- > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
